math help

What is 34/3 + 4/5?

What is 34/3 + 4/5?

Here's how we add

34
3
+
4
5

Step 1

Of course, you can't add two fractions if the denominators (bottom numbers) don't match. To get a common denominator, multiply the denominators together. Then we fix the numerators by multiplying each one by their other term's denominator.

Now you multiply 34 by 5, and get 170, then we multiply 3 by 5 and get 15.

34/3 times 5

Do the same for the second term. We multiply 4 by 3, and get 12, then multiply 3 by 5 and get 15.

4/5 times 3

The problem now has new fractions to add:

170
15
+
12
15

Step 2

Since our denominators match, we can add the numerators.

170 + 12 = 182

The sum we get is

182
15

Step 3

The last step is to reduce the fraction if we can.

To find out, we try dividing it by 2...

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

Nope. Try the next prime number, 7...

Nope. Try the next prime number, 11...

Nope. Try the next prime number, 13...

Nope. Try the next prime number, 17...

No good. 17 is larger than 15. So we're done reducing.

Congratulations! Here's your final answer to 34/3 + 4/5

34
3
+
4
5
=
182
15
© 2014 Randy Tayler